134 C. H. Kaufman 



thinner on margin, white or whitish at first, distinctly lutescent. 

 Gills adnate-emarginate with tooth, somewhat narrow to medium 

 broad, up to 5-8 (9) mm., close to crowded, at first "pale 

 vinaceous-drab " (Ridg.) becoming "ochraceous-tawny," edge 

 suberose. Stem 4-7 cm. long, 10-15 mm. thick, straight or 

 curved, subequal above the small, abrupt, oblique, marginate bulb, 

 solid, at first slightly superficially fibrillose, cortina white, at 

 length glabrescent and innately silky, white or whitish, some- 

 times tinged 'Mrab" at apex, lutescent toward base within and 

 without, bulb flattened below. Odor slight but penetrating, 

 taste mild. Spores narrowly elliptical, almost smooth under 

 high powers, 8-9 x 4-5 ix, pale rusty brown in microscope. 

 Caespitose or in gregarious clusters. Leal, Colorado. August. 

 Under conifers in mountain forests. 



This has the habit and spores of C. glaucopus, but the colors 

 are sharply different, and the pileus is never streaked. The 

 remark of Fries {Monographia, I. p. 18), that "it (C. glaucopus) is 

 changeable as it is variable," has doubtless led later mycologists 

 to take the easy road of putting a number of species under this 

 name, especially when the lutescent character of flesh and stem 

 was well marked and other characteristics seemed to fit. I 

 should not like to attempt the solution of the question as to 

 which of the segregates is to be considered the type. The 

 species before us could be so considered, except that Fries does 

 not report C. glaucopus in mountainous coniferous forests. 



Cortinarius griseoluridus sp. nov. (Myxacium) . 



Pileus 5-8 (10) cm. broad, fieshy, broadly convex then ex- 

 panded, obtuse, rarely subumbonate, with a distinct glutinous 

 pellicle, at first "light quaker drab" (Ridg.), especially on mar- 

 gin, elsewhere becoming "olive-ochre" on a "smoky-gray" ground 

 color, even, glabrous at first, at length scaly-spotted or variegate- 

 virgate from the drying gluten, margin at first incurved, some- 

 times more purplish-tinted; flesh very thick on disk, abruptly 

 thin on margin, soft, moist, at first tinted violaceous-gray, then 

 watery-whitish, with a tint of ''ochre-olive" (Ridg.) under 

 pellicle. Gills adnate-subdecurrent, then emarginate with tooth, 

 close to crowded, medium broad, at first "pale vinaceous-drab," 



